圆波导斜劈形端口辐射器的有限元分析  

Finite-element Analysis of a Circular Waveguide Bevel Cut Radiator

作　　者：袁海军[1] 钟辉煌[1] 周蔚红[1] 

机构地区：[1]国防科技大学理学院,湖南长沙410073

出　　处：《国防科技大学学报》2003年第6期76-78,共3页Journal of National University of Defense Technology

基　　金：国家863项目资助(863-410-7)

摘　　要：有限元法(FEM)适用于电磁场的散射、辐射和透射,运用三维有限元法分析了圆波导斜劈形辐射器的辐射场并计算出圆波导内部场分布,用此方法计算了X波段的辐射场,与相关文献进行了比较,结果在主瓣相当一致,分析表明在C波段圆波导TM01模斜劈形辐射器斜切角为30°时,辐射波束偏离轴向27°～42°,增益为11～14dB,可以作为高功率微波的辐射天线。The finite-element method(FEM) is a popular technique for analyzing electromagnetic scattering, radiation, and penetration. Far-field radiation pattern of circular waveguide bevel cut and fields in the waveguide are analysed with three-dimensional FEM. Results of X band are compared with related documents and FEM follows the main beam very well but disagrees more with the measurements away from the main beam. The theoretical analysis shows that the main beam of far-field radiation pattern shifts from axis direction about 27°～42° and the gain is about 11～14dB with 30° the bevel cut angle in C-band, it can be applied to high power microwave.

关 键 词：有限元法 圆波导斜劈形端口 辐射器 高功率微波 

分 类 号：TN827.1[电子电信—信息与通信工程]